Yes is does and that’s why it’s called a “piss hard on”Guys having to pee has nothing to do with it nor does it have anything to do with sacral nerves. Lol. the lumbar plexus comes out of the IVFs in the spine. And cialis surely helps dilate blood vessels. But any type of erection has to do with testosterone.
so the question still hasn’t been answered which I have recently been think about also.